Native to:
Alaska,
Alberta,
British Columbia,
California,
Colorado,
Connecticut,
Delaware,
District of Columbia,
Idaho,
Illinois,
Indiana,
Iowa,
Kentucky,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Northwest,
Michigan,
Minnesota,
Missouri,
Montana,
Nebraska,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
North Carolina,
North Dakota,
Northwest Territories,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Dakota,
Utah,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming
Introduced into:
Altay,
Austria,
Belgium,
Bulgaria,
Central European Russia,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Hungary,
Ireland,
Newfoundland,
Norway,
Poland,
Romania,
South European Russia,
Sweden,
Switzerland,
Uzbekistan,
West Siberia,
Yugoslavia